What about when I'm off to Spa for the F1 race at the end of next month, I'll be going the 180 miles to my mums, staying overnight (so let's assume we could fully charge a 250 mile range vehicle overnight) and then 300 miles to Spa, oops we've just run out...
Or I feel like going up to scotland, nope can't do that,
250 mile range would negate the need for instant charging/swappable-ness in most cases I agree, but not all and what's the alternative, have an expensive electric vehicle that will work 'most' of the time and then either own or hire a petrol vehicle on the odd occasion when the electric car can't cope? or massively change the trip because of the failings of the car? or just stick with a petrol car (or plug-in hybrid) that just works...